Table 4-25 Read Holding Registers Request (Tx) From Master - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

Request Details
Table 4-25 Read Holding Registers Request (TX) from Master
Field Name
Slave Address
Function
Starting Address (high)
Starting Address (low)
Number of Registers to Read (high)
Number of Registers to Read (low)
Response Details
Table 4-26 Read Holding Registers Response (RX) from Drive
Field Name
Transaction identifier
Transaction identifier
Protocol identifier
Protocol identifier
Length field (upper
byte)
Length field (lower
byte)
Slave Address
Function
Byte Count
Data Value 1 (MSB)
Data Value 1 (LSB)
Data Value 2 (MSB)
Data Value 2 (LSB)
Note
Parameter names and their corresponding data ID numbers are listed in Appendix
IDs .
NXGpro Communication
Function Manual, AB, A5E33486415A
Value (in Hex)
0x01
0x03
0x00
0x04
0x00
0x02
Value (in Hex) Actual Result
0
0
0
0
0
Number of bytes to
follow
0x01 N/A
0x03 N/A
0x04 N/A
0x04 0x04A5
0xA5
0x90 0x90B1
0xB1
Modbus Ethernet Communication
Description
0x01 = 1 decimal
Read holding registers command
Register number 40005
Read 2 (0x0002) registers
Scaled Value
N/A
N/A
N/A
This register is user program‐
Register Da‐
mable. See Table
ta from Drive Menu (9400) .
4.5 Functions
Description
0x01 = 1 decimal
Read holding registers
command
4 bytes in response
High byte of item 1
Low byte of item 1
High byte of item 2
Low byte of item 2
Output Data
103